check even or odd c++

To check whether a number is even or odd in C++, you can use the modulo operator (%) to determine the remainder when the number is divided by 2. Here's the step-by-step explanation:

1. Declare a variable to store the number:

int number;

1. Prompt the user to enter a number:

cout << "Enter a number: ";
cin >> number;

1. Use the modulo operator to check if the remainder is 0:

if (number % 2 == 0) {
    // The number is even
} else {
    // The number is odd
}

1. Print the result:

if (number % 2 == 0) {
    cout << "The number is even." << endl;
} else {
    cout << "The number is odd." << endl;
}

In this code, the modulo operator (%) returns the remainder of the division operation. If the remainder is 0, it means the number is divisible by 2 and therefore even. If the remainder is not 0, it means the number is not divisible by 2 and therefore odd.

Note: The code assumes that you have included the necessary header files, such as <iostream> for input/output operations.